I guess I did something.. but now it doesn't sleep or search

So I woke up this morning, closed the lid and slipped the 15" macbook pro into my sleeve, and ran off to class. about an hour later I go to use it, and it never actually made it to sleep. Instead, it just sat there in a semi-sleep state and the keyboard light sensor worked, but that's about all I could make it do. I had to force it to power down.

Since this morning, it's done it once again, and spotlight doesn't work- at all. I type things in and it doesn't find anything. I don't know why this is either.

I've rebooted, and I've repaired permissions. I don't know what else would cause this, and it's uh.. annoying to say the least. Anyone know what to do?

i can't help about your sleep problem except maybe zapping pram and power unit just in case. for spotlight, there is a privacy tab in the prefs, maybe your hard drive is listed there for some weird reason.

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